BE QUIET! SFX Power 2 300W

The official efficiency certification level awarded to a power supply or other electrical device that meets the international 80 Plus standard, indicating superior energy efficiency compared to non‑certified products. Typical values include Bronze, Silver, Gold, Platinum and Titanium.

The frequency of the alternating current supplied to the device, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the product.

The alternating current voltage range that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device.

A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.

The type of cooling mechanism used by a product, such as active fan‑based cooling, passive heat sinks, liquid cooling, or no active cooling. It indicates whether the device relies on airflow, conduction, or other methods to dissipate heat and helps users assess thermal performance and noise levels.

The method used to dissipate heat from a component or system, such as active cooling (fans or liquid loops), passive heat sinks, or no active cooling. It indicates whether the product relies on airflow, conduction, or other mechanisms to maintain safe operating temperatures.

The total count of physical power connector sockets on a computer that supply voltage to the central processing unit (CPU). Common types include 4‑pin ATX, 8‑pin EPS, and 12V CPU connectors. This value indicates how many separate power connections are available for the CPU, helping users determine compatibility with power supplies and motherboard configurations.

The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.

The pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render the visual content and is commonly used for monitors, TVs, smartphones, cameras, and digital images.

A brief statement indicating the edition or version of a product, such as "Reprint", "New Edition", or a numeric edition number like "2nd edition". It identifies which specific release of the item is being referenced.

The efficiency rating expresses the percentage of input power that a product converts into useful output, indicating how well it uses energy compared to similar models. A higher value means less waste and lower operating costs.

Indicates whether the product includes an EPS 12V power connector, which is commonly used to supply additional voltage to high‑performance computer components such as CPUs and GPUs.

The linear measurement across the widest part of a fan, expressed in units such as millimeters (mm), centimeters (cm) or inches (in). It represents the overall width of the fan and is useful for determining fit, compatibility with cases, and airflow characteristics.

The rotational speed of a fan expressed in revolutions per minute (RPM). This value indicates how fast the fan blades turn, which affects airflow and cooling performance for the component it serves.

The physical dimensions of a fan unit, expressed as the number of fans and their individual diameter in millimetres (e.g., "2 x 120mm"). This attribute helps users understand the cooling capacity and compatibility with cases or other components.

Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.

The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.

The electrical current that a device draws from its power source, expressed in amperes (A). It indicates how much current the product consumes during normal operation and helps determine compatibility with power supplies or USB ports.

The count and configuration of the +12 V power rails supplied by a computer power supply unit. Common values include "Single Rail", "Dual Rail", "Quad Rail" or combinations such as "Single/Multi Rail". This attribute helps users understand how many independent +12 V outputs are available for powering components, which can affect load distribution and reliability.

Indicates whether a user manual—physical or digital—is provided with the product. A value of "Yes" means that a manual is included, while a value of "No" indicates that no manual is supplied.

The highest electrical current that a power supply can deliver on its combined +12 V rail, expressed in amperes (A). It indicates the maximum load capacity of the +12 V output and is useful for comparing power supplies or determining if a unit can meet the needs of high‑power components.

The highest percentage of input electrical power that a device can convert into usable output power when operating on 230 V alternating current. It indicates the peak energy conversion performance and helps consumers compare how efficiently different models use electricity.

Indicates whether a product supports modular components or systems, such as modular power supplies, network switches, or other hardware that can be expanded or replaced with compatible modules.

Indicates the type of cable configuration a power supply offers: fully modular, semi‑modular, or non‑modular. A value of "Modular" means all cables can be detached and reconnected; "Semi‑Modular" indicates that some cables are detachable while others remain permanently wired; "No" (or "Non‑Modular") signifies that all cables are fixed to the unit.

Indicates the type of modularity a product offers, such as full modular, hybrid modular, or fully wired. The value describes how components can be added, removed, or replaced independently within the system.

The total count of Molex power connector ports present on a product, expressed as an integer without units. This value indicates how many Molex interfaces are available for connecting peripherals or components that require this type of connection.

The total number of electrical contacts in the ATX main power connector that supplies a computer system with power. Common values are 20+4‑pin (24 pins) and 24‑pin, indicating the standard ATX power interface used by motherboards and power supplies.

The pin configuration of the power connector(s) used by a motherboard, expressed as a textual description such as "4 + 8-Pin" or "4-Pin x 2". It indicates how many pins are present in each connector and whether multiple connectors are required for proper operation.

The sound intensity produced by a product, expressed in decibels (dB) or sones. It indicates how loud the device is during operation and helps users assess suitability for quiet environments.

Indicates whether the product includes an on/off switch that allows the user to power it on or off manually.

The linear measurement from front to back or top to bottom of a product’s packaging, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the packaged item is and can be used for fitting, compatibility, or spatial planning.

The vertical dimension of a product’s packaging measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and helps customers assess how tall the package will be when stored or shipped.

The horizontal measurement of a product’s packaging, expressed in a linear unit such as millimetres or inches. It indicates how wide the package is from one side to the other and helps customers assess fit for storage, shipping, or display.

The arrangement of pins on a PCI‑Express connector, indicating how many power and data pins are present (e.g., "6+2-Pin", "8-Pin", "12+4-Pin"). This attribute helps determine compatibility with motherboards, GPUs, or other expansion cards that require specific pin counts for proper operation.

The electrical power rating of a product, expressed in watts (W). It indicates how much energy the device consumes during operation or how much power it can deliver to connected equipment.

The specific model or designation of a power connector used by an electronic device, such as ATX, Molex, SATA, JEITA, or 8‑pin PCIe. It identifies the physical interface that supplies electrical power to the component.

The ratio of real power to apparent power in an electrical system, expressed as a dimensionless number typically between 0 and 1. It indicates how efficiently the device converts electrical energy into useful work; values closer to 1 mean less reactive power and higher efficiency.

A comma‑separated list of the electrical protection mechanisms built into a device, such as overcurrent, overload, short circuit, under voltage, and overheating safeguards. The attribute indicates which protective features are present to protect the equipment and connected components from abnormal power conditions.

The physical form factor of a power supply unit, indicating its size and mounting configuration (e.g., ATX, SFX, TFX). This attribute helps determine compatibility with computer cases and other hardware components.

The purpose indicates the primary function or intended use of a product, such as "Notebook", "Gaming", or "Server". It helps customers quickly identify whether the item matches their needs and can be used for filtering or categorization across different product categories.

Indicates whether the product is manufactured in accordance with the RoHS (Restriction of Hazardous Substances) directive, which limits the use of certain hazardous materials in electrical and electronic equipment.

The overall dimension or measurement that identifies the size of a product, such as a frame, garment, electronic component, or container. It can be expressed as a single numeric value (e.g., 47 mm), a range (e.g., 50–60 cm), a volume (e.g., 700 ml), or a descriptive label like "One Size". The attribute helps customers compare and select items that fit their needs.

Indicates whether the product supports NVIDIA SLI or AMD CrossFire technology, allowing multiple graphics cards to work together for increased performance.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.

The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.